Convert ICD-9-CM Diagnosis 410.21 to ICD-10-CM

ICD-9-CM 410.21 converts approximately to:
  • 2023 ICD-10-CM I21.19 ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall

Note: approximate conversions between ICD-9-CM codes and ICD-10-CM codes may require clinical interpretation in order to determine the most appropriate conversion code(s) for your specific coding situation.

Source: 2023 ICD-10-CM CMS General Equivalence Mappings.